1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.camera.ui;
18
19import android.content.Context;
20import android.util.AttributeSet;
21import android.view.SurfaceHolder;
22import android.view.SurfaceView;
23import android.view.ViewGroup;
24
25import com.android.gallery3d.common.ApiHelper;
26
27public class PreviewSurfaceView extends SurfaceView {
28    public PreviewSurfaceView(Context context, AttributeSet attrs) {
29        super(context, attrs);
30        setZOrderMediaOverlay(true);
31        getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
32    }
33
34    public void shrink() {
35        setLayoutSize(1);
36    }
37
38    public void expand() {
39        setLayoutSize(ViewGroup.LayoutParams.MATCH_PARENT);
40    }
41
42    private void setLayoutSize(int size) {
43        ViewGroup.LayoutParams p = getLayoutParams();
44        if (p.width != size || p.height != size) {
45            p.width = size;
46            p.height = size;
47            setLayoutParams(p);
48        }
49    }
50}
51